Microstructure optimization of austenitic Alloy 800H (Fe-21Cr-32Ni)

▶ Presented a synergistic effect of TMP on microstructure and resulted properties. ▶ Used AFM to quantitatively analyze geometry and distribution of GB precipitates. ▶ Correlated GB characters with precipitates to interpret their effects on properties. ▶ Provided evidence of coherent precipitates at coherent Σ3 boundaries.